Re: Zip list

From	"Carlos E.R." <robin_listas@es.invalid>
Newsgroups	comp.os.linux.misc
Subject	Re: Zip list
Date	2023-02-25 12:10 +0100
Message-ID	<lt6pcjxblu.ln2@Telcontar.valinor> (permalink)
References	(8 earlier) <tsqj1j$vvi$5@dont-email.me> <87pma61xl0.fsf@usenet.ankman.de> <tst07u$cgst$2@dont-email.me> <sse9cjx79g.ln2@Telcontar.valinor> <ZPWdnYAQdIm6P2T-nZ2dnZfqn_SdnZ2d@earthlink.com>

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On 2023-02-25 06:51, 25A.I866 wrote:
> On 2/19/23 6:48 AM, Carlos E.R. wrote:
>> On 2023-02-19 12:13, The Natural Philosopher wrote:
>>> On 18/02/2023 21:18, Andreas Kohlbach wrote:
>>>> On Sat, 18 Feb 2023 13:15:31 +0000, The Natural Philosopher wrote:
>>>>>
>>>>> On 18/02/2023 11:43, Carlos E.R. wrote:
>>>>>> On 2023-02-18 11:12, The Natural Philosopher wrote:
>>>>>>>
>>>>>>> RAR was my pet hate...
>>>>>>>
>>>>>> Why? :-?  :-o
>>>>>>
>>>>> Could never find an unpacking program that ran on Unix.
>>>>
>>>> unrar x file.rar
>>>>
>>>> should deflate the content into the PWD.
>>>
>>> Today yes, not in 1993, to run on SCO Unix.
>>
>> Well, RAR for DOS appeared on 1993! :-D
>>
>> So in 1993 there wasn't a version for Linux, either.
>>
>> I believe the sources were published with version 2, or version 2 
>> sources were published when version 3 appeared. The wikipedia article 
>> doesn't have dates for these. But as soon as those sources appeared, 
>> anybody could compile a version for Unix.
> 
> 
>    Always SOUNDS so simple  :-)
> 
>    I always wind up having to write fill-ins for the
>    missing/very-different library routines between
>    Win and Lin.
> 
>    Anyway, I'm not sure about the fascination with RAR.
>    It is good, but then so are many others that are more
>    modern/portable/supported.
> 
>    Found an interesting "loop-based" approach to an Str2Int64()
>    today. Basically it does powers of ten on each digit (derived
>    from the ASCII values of the digits minus-48). It MAY be a bit
>    faster than the one I wrote the other day for Pascal that
>    involves 'shrinking down' the presented number. I'll have
>    to benchmark. Mine only used integer subtraction and ONE
>    modulo. Not AS many steps. But, we'll see.
> 
>    I was writing a "disk visualizer" the other day (turned out
>    pretty well) but Int64 numbers/functions ARE involved. Today
>    I took that to write a 'C' "Disk Blaster" ... kinda like using
>    'dd' to zero (or pattern-write) a whole drive but because it's
>    not as complex it's about 30% quicker. Added a 'skitter' option
>    that's applied AFTER the prescribed number of bytes are
>    overwritten ... 'skittering' means writing yer zero/pattern
>    block roughly (a little randomness added to annoy) every
>    50mb on the REST of the disk area. It is not 'erasure'
>    per-se, but kinda 'corrupts' and is 50x as fast. You can
>    go thru a 1tb disk in an external USB3.0 fixture in about
>    five minutes with 'skittering'. So, you totally obliterate
>    the X-bytes you're most paranoid about and then randomly
>    insert junk in the rest.
> 
>    Just gotta smooth-out the params ... there's no slack
>    right now. Something like 'dd' params would be good.
>    It always uses the equiv of "bs=1M" ... seems the best
>    compromise after some experimentation. My visualizer
>    made it easy to see if the blaster util was doing it
>    right.

I wrote a tool in pascal to write an entire device with nearly random 
data, and does so at the SATA speed of the (mechanical) disk, about 190 
MB/S last time I tried. I have done 4 TB disks.


-- 
Cheers, Carlos.

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Zip list db <dieterhansbritz@gmail.com> - 2023-02-16 16:57 +0100
  Re: Zip list Bobbie Sellers <bliss@mouse-potato.com> - 2023-02-16 08:12 -0800
    Re: Zip list "25B.R866" <25B.R866@noaaba.net> - 2023-02-18 03:59 -0500
      Re: Zip list Andreas Kohlbach <ank@spamfence.net> - 2023-02-18 16:16 -0500
        Re: Zip list "25B.R866" <25B.R866@noaaba.net> - 2023-02-18 21:40 -0500
          Re: Zip list Andreas Kohlbach <ank@spamfence.net> - 2023-02-19 21:13 -0500
            Re: Zip list Computer Nerd Kev <not@telling.you.invalid> - 2023-02-20 17:19 +1000
              Re: Zip list "Carlos E. R." <robin_listas@es.invalid> - 2023-02-20 11:38 +0100
  Re: Zip list Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2023-02-16 16:31 +0000
  Re: Zip list Robert Heller <heller@deepsoft.com> - 2023-02-16 16:51 +0000
    Re: Zip list Andreas Kohlbach <ank@spamfence.net> - 2023-02-16 19:21 -0500
  Re: Zip list "Nuno Silva" <nunojsilva@invalid.invalid> - 2023-02-17 10:44 +0000
    Re: Zip list "David W. Hodgins" <dwhodgins@nomail.afraid.org> - 2023-02-17 10:41 -0500
      Re: Zip list Robert Heller <heller@deepsoft.com> - 2023-02-17 16:28 +0000
        Re: Zip list "Carlos E. R." <robin_listas@es.invalid> - 2023-02-17 19:06 +0100
          Re: Zip list Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2023-02-17 19:32 +0000
            Re: Zip list Bobbie Sellers <bliss@mouse-potato.com> - 2023-02-17 11:56 -0800
              Re: Zip list "Carlos E. R." <robin_listas@es.invalid> - 2023-02-17 21:10 +0100
            Re: Zip list "Carlos E. R." <robin_listas@es.invalid> - 2023-02-17 20:59 +0100
            Re: Zip list The Natural Philosopher <tnp@invalid.invalid> - 2023-02-18 10:12 +0000
              Re: Zip list "Carlos E.R." <robin_listas@es.invalid> - 2023-02-18 12:43 +0100
                Re: Zip list The Natural Philosopher <tnp@invalid.invalid> - 2023-02-18 13:15 +0000
                Re: Zip list Robert Heller <heller@deepsoft.com> - 2023-02-18 14:46 +0000
                Re: Zip list "Carlos E.R." <robin_listas@es.invalid> - 2023-02-18 17:39 +0100
                Re: Zip list The Natural Philosopher <tnp@invalid.invalid> - 2023-02-19 11:10 +0000
                Re: Zip list "Carlos E.R." <robin_listas@es.invalid> - 2023-02-19 12:42 +0100
                Re: Zip list "25B.E866" <25B.E866@noaaba.net> - 2023-02-22 00:58 -0500
                Re: Zip list "Carlos E. R." <robin_listas@es.invalid> - 2023-02-22 18:54 +0100
                Re: Zip list Andreas Kohlbach <ank@spamfence.net> - 2023-02-22 17:00 -0500
                Re: Zip list not@telling.you.invalid (Computer Nerd Kev) - 2023-02-23 09:23 +1000
                Re: Zip list Andreas Kohlbach <ank@spamfence.net> - 2023-02-22 19:41 -0500
                Re: Zip list Andreas Kohlbach <ank@spamfence.net> - 2023-02-22 19:43 -0500
                Re: Zip list "25B.E866" <25B.E866@noaaba.net> - 2023-02-23 01:08 -0500
                Re: Zip list "Andrei Z." <no-email@invalid.invalid> - 2023-02-23 13:32 +0300
                Re: Zip list "25B.E866" <25B.E866@noaaba.net> - 2023-02-23 11:23 -0500
                Re: Zip list "Andrei Z." <no-email@invalid.invalid> - 2023-02-23 20:29 +0300
                Re: Zip list "25B.E866" <25B.E866@noaaba.net> - 2023-02-23 21:22 -0500
                Re: Zip list Computer Nerd Kev <not@telling.you.invalid> - 2023-02-24 13:18 +1000
                Re: Zip list "25A.I866" <25A.I866@noacba.net> - 2023-02-25 00:13 -0500
                Re: Zip list Computer Nerd Kev <not@telling.you.invalid> - 2023-02-26 12:01 +1000
                Re: Zip list "Andrei Z." <no-email@invalid.invalid> - 2023-02-24 07:58 +0300
                Re: Zip list "25A.I866" <25A.I866@noacba.net> - 2023-02-25 00:15 -0500
                Re: Zip list "Andrei Z." <no-email@invalid.invalid> - 2023-02-25 09:34 +0300
                Re: Zip list "25A.I866" <25A.I866@noacba.net> - 2023-02-25 02:33 -0500
                Re: Zip list The Natural Philosopher <tnp@invalid.invalid> - 2023-02-25 10:19 +0000
                Re: Zip list Eric Pozharski <whynot@pozharski.name> - 2023-02-25 13:43 +0000
                Re: Zip list "Carlos E.R." <robin_listas@es.invalid> - 2023-02-25 12:04 +0100
                Re: Zip list The Natural Philosopher <tnp@invalid.invalid> - 2023-02-25 10:00 +0000
                Re: Zip list Andreas Kohlbach <ank@spamfence.net> - 2023-02-18 16:18 -0500
                Re: Zip list The Natural Philosopher <tnp@invalid.invalid> - 2023-02-19 11:13 +0000
                Re: Zip list "Carlos E.R." <robin_listas@es.invalid> - 2023-02-19 12:48 +0100
                Re: Zip list "25A.I866" <25A.I866@noacba.net> - 2023-02-25 00:51 -0500
                Re: Zip list Rich <rich@example.invalid> - 2023-02-25 06:15 +0000
                Re: Zip list "25A.I866" <25A.I866@noacba.net> - 2023-02-25 02:30 -0500
                Re: Zip list The Natural Philosopher <tnp@invalid.invalid> - 2023-02-25 10:17 +0000
                Re: Zip list "25A.I866" <25A.I866@noacba.net> - 2023-02-25 23:08 -0500
                Re: Zip list Robert Riches <spamtrap42@jacob21819.net> - 2023-02-26 03:46 +0000
                Re: Zip list The Natural Philosopher <tnp@invalid.invalid> - 2023-02-25 10:09 +0000
                Re: Zip list "25A.I866" <25A.I866@noacba.net> - 2023-02-26 00:12 -0500
                Re: Zip list "Carlos E.R." <robin_listas@es.invalid> - 2023-02-25 12:10 +0100
                Re: Zip list "25A.I866" <25A.I866@noacba.net> - 2023-02-25 23:41 -0500
                Re: Zip list "Carlos E.R." <robin_listas@es.invalid> - 2023-02-26 20:22 +0100
                Re: Zip list "28A.I873" <28A.I873@noabzba.net> - 2023-02-26 23:56 -0500
                Re: Zip list "Carlos E.R." <robin_listas@es.invalid> - 2023-02-27 19:26 +0100
                Re: Zip list "28A.I873" <28A.I873@noabzba.net> - 2023-02-27 22:20 -0500
                Re: Zip list Rich <rich@example.invalid> - 2023-02-28 15:21 +0000
                Re: Zip list "Carlos E.R." <robin_listas@es.invalid> - 2023-03-01 23:23 +0100
                Re: Zip list "28A.I873" <28A.I873@noabzba.net> - 2023-03-02 00:02 -0500
              Re: Zip list Andreas Kohlbach <ank@spamfence.net> - 2023-02-18 16:17 -0500
            Re: Zip list Eric Pozharski <whynot@pozharski.name> - 2023-02-18 14:55 +0000

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